TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

PUISSANCE ASTIGMATIQUE [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-03-24

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Optical Glass
  • The Eye
Universal entry(ies)
C
symbol, see observation
DEF

The difference between the powers in the two principal meridians.

OBS

Astigmatic power is expressed in D or dpt [(dioptres)], or in reciprocal metres (m-1).

OBS

C: This symbol should be italicized.

OBS

astigmatic power; cylindrical power; C: terms, symbol and definition standardized by ISO.

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Verres d'optique
  • Oeil
Entrée(s) universelle(s)
C
symbol, see observation
DEF

Différence entre les puissances dans les deux méridiens principaux.

OBS

La puissance astigmatique est exprimée en D ou dpt [(dioptries) ] ou en mètres réciproques(m-1).

OBS

C : Ce symbole devrait être en italique.

OBS

puissance astigmatique; astigmatisme; C : termes, symbole et définition normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Medición y análisis (Ciencias)
  • Vidrios ópticos
  • Ojo
Entrada(s) universal(es)
C
symbol, see observation
DEF

Máxima diferencia de la potencia refrigente entre dos meridianos perpendiculares a cada uno y al eje de enfoque.

OBS

Está expresada en metros a la menos uno (m-1).

Save record 1

Record 2 2013-02-07

English

Subject field(s)
  • Scientific Measurements and Analyses
  • Optical Glass
  • The Eye
Universal entry(ies)
S
symbol, see observation
DEF

The value of the back vertex power of a spherical-power ocular or lens, or the vertex power in one of the two principal meridians of an astigmatic-power ocular or lens, depending on the principal meridian chosen for reference.

OBS

Spherical power is expressed in D or dpt, or in reciprocal metres (m-1). [(The unit "dioptre" is commonly abbreviated D or dpt.)]

OBS

S: This symbol is italicized.

OBS

spherical power; spherical effect; S: terms, symbol and definition standardized by the International Organization for Standardization (ISO).

French

Domaine(s)
  • Mesures et analyse (Sciences)
  • Verres d'optique
  • Oeil
Entrée(s) universelle(s)
S
symbol, see observation
DEF

Puissance frontale arrière d’un oculaire ou d’un verre à puissance sphérique, ou selon le méridien principal choisi comme référence, puissance frontale d’un des deux méridiens principaux d’un oculaire ou d’un verre astigmatique.

OBS

La puissance sphérique est exprimée en D ou dpt ou en mètres réciproques (m-1). [(L’unité «dioptrie» est souvent abrégée D ou dpt.)]

OBS

S : Ce symbole s’écrit en italique.

OBS

puissance sphérique; S : terme, symbole et définition normalisés par l’Organisation internationale de normalisation (ISO).

Spanish

Save record 2

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TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
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